Unhandled promise error: `quo` must be a quosure

[gdeoli]

Hi,

I'm trying to handle an expression within future_promise, but I'm getting this Unhandled promise error: quo must be a quosure error. Could anyone explain why this message is appearing and whether there is a way to rewrite the following code, to get the mutate statement within the future_promise function?

fraserData <- reactiveValues(fraserDT = NULL, visibility = FALSE)
foo <- reactive({
   path <- MyPath()
   future_promise({ read_tsv(path) %>%
     mutate(significantDelta = case_when(
      padjust < pValueCutoff & abs(deltaPsi) >= deltaPsiCutoff ~ "p-value and delta",
      padjust < pValueCutoff & abs(deltaPsi) < deltaPsiCutoff ~ "p-value",
      padjust >= pValueCutoff & abs(deltaPsi) >= deltaPsiCutoff ~ "delta",
      padjust >= pValueCutoff ~ "NS"
    ))}) %>% then(function(value) {
            fraserData$fraserDT <<- value
            fraserData$visibility <<- TRUE
           })
NULL
 })

[schloerke]

I'm trying to handle an expression within future_promise, but I'm getting this Unhandled promise error: quo must be a quosure error. Could anyone explain why this message is appearing and whether there is a way to rewrite the following code, to get the mutate statement within the future_promise function?

Reformatted code:

fraserData <- reactiveValues(fraserDT = NULL, visibility = FALSE)
foo <- reactive({
	path <- MyPath()
	future_promise({
		read_tsv(path) %>%
			mutate(
				significantDelta = case_when(
					padjust < pValueCutoff & abs(deltaPsi) >= deltaPsiCutoff ~
						"p-value and delta",
					padjust < pValueCutoff & abs(deltaPsi) < deltaPsiCutoff ~ "p-value",
					padjust >= pValueCutoff & abs(deltaPsi) >= deltaPsiCutoff ~ "delta",
					padjust >= pValueCutoff ~ "NS"
				)
			)
	}) %>%
		then(function(value) {
			fraserData$fraserDT <<- value
			fraserData$visibility <<- TRUE
		})

	NULL
})

I don't see anything wrong with your code on the surface. You make the promise, the data is altered within the promise. The reactives are updated after the future_promise().

Without a full reprex it's hard to debug.

---

Closing as stale / can't repro